Harrow or cultivator tooth



(No Model.) aaneensheen 1Q P.X.'KRABAGH. y HARROW 0R GULTIVATOR TOOTH,

No. 489,960. Patented Jan. 17, 1893.

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(No Model.) I 2 Sheets-Sheet P. X. KRABAGH.

HARROW ORA GULTIVATQR TGOTH.

No. 489,960. u Patented Jam. 17. 1893.

- NTTED STATES FRANK X. KRABAOII,

OF DEFIANOE, OI-IIO.

HARROW OR CULTIVATOR TOOTH.

SPECIFICATION forming part of Letters Patent No. 489,960, dated January17, 1893.- Application filed September 26, 1892. Serial No. 446,940. (Nomodel.)

To all whom it may concern:

Be it known that l, FRANK X. KRABAGH, a citizen of the United States,residing at Defiance, in the county of Deance and State of Ohio, haveinvented certain new and useful Improvements in Harrow or OultivatorTeeth; and I do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

My invention has relation to improvements in harrows, and cultivators,and teeth therefor, and it is designed more particularly as animprovement upon the construction disclosed in my prior Letters IfatentNo. 461,837, dated October 27, 1891. v

The general object of my present invention is to provide teeth soconstructed and relatively arranged in a frame that they will be of easydraft and will serve effectively to cut and crush clods rc. and coverwheat and other grain that is sown broadcast.

A further object of the invention is to provide a tooth embodying such aconstruction that it will not pull the weeds, straw or manure out of theground when the same is plowed under, but will cut and work down and mixthe soil and will pulverize the same just below the surface and therebyform a good bed for the seed.

Other objects and advantages will be fully understood from the followingdescription and claims when taken in connection with the annexeddrawings in whichz- Figure l, is a perspective view of a harrowembodying my invention, in which view is shown the relative arrangementof the teeth. Fig. 2, is a perspective View of one of the teeth, lookingat one side thereof. Fig. 3, is a similar view looking at the oppositeside of the tooth, and:-Fig. 4, is a horizontal, transverse sectiontaken in the plane indicated by the line of Fig. 2.

In the said drawings similar letters designate corresponding partsthroughout the several views, referring to which A, indicates a harrowframe which may be of any ordinary or approved construction, and whichpreferably comprises transverse beams as o, and suitable connecting barsas h. p

M, indicates my improved eultivator teeth which are preferably formedrespectively from a single piece of metal and comprise a tooth or bladeB, a flange or wing C, and an auxiliary cutter D, and a suitable shankas E. The tooth or blade B, which increases in thickness rearwardly asshown, is provided with a forward, longitudinal cutting edge c, which isapproximately straight from its upper end to the point Z', from whenceit is curved downwardly, and inwardly, and describes a convex curve,whereby it will readily take through the earth and will easily cutwhatever vegetation there niay be in its path. This tooth or blade B,has its rear thickened edge slightly inclined upwardly and rearwardly asshown, and from this rear thickened edge, at an in'- termediate point inthe length thereof, extends the iiange or wing C, which rests in avertical plane and is pitched rearwardly and laterally with respect tothe blade, as illustrated. This wing O, has its outer edge curvedconvexly as shown from its upper end d, to its lower end c, and it isdesigned to assist in the pulverizing of the upper or top soil and turnthe same, and such trash or manure as may be cut by the blade B.

Extending laterally, rearwardly, and downwardly from the lower end ofthe blade B, and at the lower end of the iiange or wing as C, is theauxiliary cutter D, which serves to loosen the soil and cut any roots ortrash beneath the surface, and also tends to lessen the draft by raisingthe soil as it is cut by the edge of the blade B. The shanks E, of theteeth M, are preferably threaded as shown, to receive the nuts m,through the medium of which they are preferably secured to the framebeams a, although any suitable means may be employed for effecting suchattachment.

As illustrated in Fig. l, of the drawings, the teeth M, of one beam arepitched in opposite directions or are reversed with respect to the teethof the next or alternate beam; or in other Words the blades B, of theteeth of one beam rest in parallel, transversely-oblique planes whilethe blades of the teeth of the next or alternate beam rest in paralleltransversely-oblique planes at approximately right angles to the planesof the blades of the first named beams, and the iianges or wings of theblades of one beam extend in opposite directions with respect to theianges or wings of IOO lIO

the blades of the next beam. By this construction it will be readilyperceived that the foremost teeth will serve to loosen and turn thesoil, manure dac, in one direction, while the teeth of the nextsucceeding beam will loosen and turn the soil, manure &c, in theopposite direction, thus insuring a thorough pulverizing of the soil,and mixing of the soil or manure and decayed vegetable matter so as toform a very fertile bed for the seed.

In some cases the component parts of my improved cultivator tooth may bemade separately and be suitably connected together, and I therefore donot desire to be confined to forming the said parts integral as beforedescribed.

Having described my invention what l claim is:-

l. As an improved article of manufacture, a cultivator or harrow tooth,comprising a blade increasing` in thickness rearwardly and having theforwardly vertically disposed cutting edge, the rearwardly and laterallypitched lange or wing extending from the rear edge of the blade at anintermediate point in the length thereof, and the laterally anddownwardly extending auxiliary cutter at the lower end of the blade,substantially as and for the purpose set forth.

2. In a harrow or cultivator, the combination with aframe comprising aseries of beams suitably connected together and a series of teethcarried by one beam and comprising the blades resting in parallel,transversely-oblique, vertical planes, the flanges or wings extendingrearwardly and laterally in one direction from the rear edges of theblades, and the auxiliary cutter extending downwardly and laterally inone direction from the lower ends of the blades; otl a series of teethcarried by the next or alternate beam and comprising the blades restingin parallel, transversely oblique, vertical planes at approximatelyright angles to the planes of the teeth of the rst named beams, theanges or wings extending rearwardly and laterally from the rear edges ofthe blades in opposite directions with respect to the flanges or wingsof the teeth of the Iirst named beam, and the auxiliaryv cuttersextending downwardly and laterally from the lower ends of the blades inopposite directions with respect to the cutters of the teeth of thefirst named beam, substantially as specilied.

In testimony whereof I affix my signature in presence of two witnesses.

FRANK X. KRABACI-I.

lVitnesses:

F. L. HAY, JOHN W. WINN.

